DE102019207585A1 - Molded part, seat and method of making a molded part - Google Patents

Abstract

In order to provide a molded component that can be produced easily and inexpensively, it is proposed that the molded component have at least one tubular support, which comprises two legs and a connecting section arranged between the two legs, and an additional structure, which is an injection-molded component and on which at least one tubular Support is set, comprises, wherein the molded component has a fastening end by means of which the molded component can be fixed to a further component, wherein the connecting section is arranged at the fastening end of the molded component or the fastening end and wherein the additional structure two end regions of the two facing away from the connecting section Connects legs of the at least one tubular carrier to one another.

Description

The present invention relates to a molded component which can be used, for example, as a supporting structure in a vehicle or aircraft seat.

Such molded components are formed, for example, from several metallic elements which are connected to one another in particular by welding.

From the EP 2 479 060 A1 and from the DE 10 2017 215 092 A1 vehicle seats are known in which a metallic carrier is provided with an injection-molded plastic component.

The present invention is based on the object of providing a molded component which can be produced simply and inexpensively.

According to the invention, this object is achieved by a molded component which comprises at least one tubular carrier and an additional structure.

The at least one tubular carrier comprises two legs and a connecting section arranged between the two legs.

The additional structure is an injection molded component and is fixed to the at least one tubular carrier.

The molded component also has a fastening end, by means of which the molded component can be fixed to a further component, for example a seat surface of a seat.

The connecting section is arranged at the fastening end of the molded component or forms the fastening end.

The additional structure connects two end regions of the two legs of the at least one tubular carrier facing away from the connecting section to one another.

Because the connecting section is arranged on the fastening end or forms the fastening end, the molded component has in particular improved transverse rigidity.

It can be advantageous if the connecting section partially or completely forms the fastening end.

It can be favorable if the connecting section faces a seat surface area of the seat in the assembled state of the molded component in a seat. In particular, the connecting section adjoins the seat area in the assembled state.

The seat surface area is preferably arranged horizontally in the assembled state and / or forms a receptacle for the buttocks of a person who has sat down on the seat.

In the assembled state of the molded component, the additional structure preferably forms a shoulder support structure, in particular for leaning against a shoulder part of a person who is seated on the seat.

It can be provided that the additional structure is injection molded onto the at least one tubular carrier.

In addition or as an alternative, the additional structure is inserted and / or pushed into the two end regions of the two legs facing away from the connecting section.

Alternatively, the two end regions of the two legs facing away from the connecting section are inserted and / or pushed into the additional structure.

It can be favorable if the connecting section, in the assembled state of the molded component, is arranged at the bottom of the molded component with respect to a direction of gravity.

The at least one tubular carrier and the additional structure preferably together form a closed profile and / or a closed frame.

The end regions of the two legs facing away from the connecting section are preferably formed opposite one another with respect to a vertical longitudinal center plane of the molded component. The vertical longitudinal center plane is preferably defined as that plane which forms a plane of symmetry for the at least one tubular carrier.

The at least one tubular carrier preferably forms at least approximately a, in particular angular, U-shape.

In the assembled state of the molded component, the at least one tubular carrier forms, in particular, a component of a load-bearing structure of a seat of a vehicle or aircraft.

It can be advantageous if the at least one tubular carrier is made from a ductile material. This also leads in particular in the event of a crash, to increased stability of the molded component and / or of a seat containing the molded component.

It can be favorable if the additional structure is arranged at a free end of the molded component opposite the fastening end or if it forms the free end.

The free end of the molded component is preferably not attached to a further component. In the assembled state, the free end of the molded component is in particular arranged at a distance from a seat surface of the seat.

The free end of the molded component is preferably arranged opposite the fastening end with respect to a horizontal longitudinal center plane of the molded component.

In particular, the at least one tubular carrier and the additional structure together form a closed, in particular angular, ring shape.

The additional structure preferably completes the at least one tubular carrier to form an, in particular completely, closed ring shape.

In particular, the additional structure complements the at least one tubular carrier to form a, in particular completely, closed ring.

It can be favorable if a, in particular angular, U-shape of the at least one tubular carrier forms a shape which is closed on three sides and which is and / or is closed in particular by the additional structure.

It can be provided that the additional structure forms a cross member. In particular, the additional structure connects the two end regions of the two legs facing away from the connecting section in a force-transmitting and / or stabilizing manner.

The additional structure preferably increases the torsional rigidity of the molded component and / or stabilizes the molded component against a movement of the two end regions of the legs facing away from the connecting section relative to one another.

The molded component preferably comprises a pivoting device, by means of which the at least one tubular carrier and / or the additional structure are held pivotably about a pivot axis relative to one or more coupling components of the pivoting device, the pivoting device being arranged in particular on the two legs and / or adjacent to the connecting section is.

It can be provided that the pivoting device comprises fixed coupling components relative to the at least one tubular carrier, which coupling components move with a pivoting movement of the at least one tubular carrier.

In particular, the pivoting device comprises one or more coupling components which are rotatable relative to the at least one carrier and which do not move with a pivoting movement of the at least one tubular carrier.

The one or more rotatable coupling components are preferably fixed with respect to a pivoting movement of the at least one tubular carrier.

It can be favorable if the one or more rotatable coupling components are fixed to the seat surface of the seat.

The at least one tubular support and / or the additional structure are held pivotably relative to the seat surface of the seat by means of the pivot device.

It can be provided that a rotatable coupling component is designed in the form of a rod-shaped element which extends from a first transition area from the connecting section to a first of the two legs and a second transition area from the connecting section to a second of the two legs. A longitudinal center axis of the rod-shaped element is preferably arranged parallel to a longitudinal center axis of the connecting section.

The rod-shaped element preferably extends through openings in the legs and is connected to a further component, for example the seat surface of the seat, in particular on the outer sides of the at least one tubular carrier.

Alternatively, it can be provided that the rod-shaped element forms a fixed coupling component and that rotatable coupling components engage from the outside in the transition areas.

It can be advantageous if the pivoting device comprises an integrated motor. The motor is, for example, an electric motor.

The motor preferably engages, in particular via a transmission, on a rotatable coupling component, for example on the rod-shaped element, and / or on the at least one tubular element Carrier on. It can be advantageous if the motor is arranged between the two legs and / or within the at least one tubular support.

The motor preferably performs a mechanical work that is required for a pivoting movement of the at least one tubular carrier relative to the one or more rotatable coupling components and / or to a seat surface of the seat.

A power transmission for the pivoting movement of the at least one tubular carrier and / or the additional structure preferably takes place on the at least one tubular carrier. For example, the motor engages at least one of the two legs of the at least one tubular carrier.

Two or more fixed coupling components preferably engage laterally from the outside in the two transition areas.

It can be favorable if the pivoting device comprises two connection elements by means of which a coupling component of the pivoting device that is fixed relative to the at least one tubular carrier is fixed to the at least one carrier. The two connecting elements are in particular arranged opposite one another at the two transition areas from the connecting section to the legs and.

The two connection elements serve in particular to transmit the force for the pivoting movement of the at least one tubular carrier and / or the additional structure.

The two connection elements are preferably arranged opposite one another with respect to the vertical longitudinal center plane of the molded component.

Inner sides of the two connection elements are preferably designed to be completely or partially complementary to outer sides of the two transition areas.

It can be favorable if the two connection elements are fixed to the two transition areas in a form-fitting and / or force-fitting manner, for example by means of screws.

The two connecting elements are preferably metal sheets, for example steel sheets.

It can be favorable if the molded component comprises a pivoting device by means of which the at least one tubular carrier and / or the additional structure are held pivotably about a pivot axis relative to one or more coupling components of the pivoting device. The pivoting device is preferably fixed to the at least one tubular carrier in a materially and / or positively and / or non-positively by means of two connecting elements.

In particular, one or more coupling components of the pivoting device that are fixed relative to the at least one tubular carrier are fixed to the two connection elements in a materially and / or positively and / or non-positively manner.

It can be provided that one or more, in particular two, coupling components that are fixed relative to the at least one tubular carrier are welded to the two connection elements, in particular laterally from the outside.

It can be favorable if the additional structure forms part of an additional device, the additional device further comprising a plate-shaped element which is arranged at least approximately parallel to a plane in which longitudinal center axes of the two legs and / or the connecting section lie.

It can be advantageous if the plate-shaped element is secured to the connecting section by means of one or more securing sections, which are in particular injection molded around the connecting section and / or ring-shaped surrounding the connecting section.

The plate-shaped element preferably comprises spring elements which are encapsulated by a polymer material. The spring elements in particular comprise spring wires or are spring wires. (Further) suitable materials for elements of the additional device will be discussed in greater detail later.

The additional structure preferably comprises, in particular on both sides, a framework structure which extends in particular into the two legs of the at least one tubular carrier.

Ribs of the truss structure extend in particular along planes which are arranged parallel to a demolding direction and / or perpendicular to the demolding direction.

The demolding direction is preferably that direction along which an injection molding tool, by means of which the additional structure is produced, opens.

The demolding direction is in particular that direction along which the Additional structure is removed from the injection molding tool and / or is ejected.

For improved rigidity, it can be advantageous if the framework structure in the additional structure extends on both sides, in particular with respect to a front side and / or a rear side of the seat.

In particular, the ribs of the framework structure extend parallel to a demolding direction and / or on both sides away from a main extension plane of a backrest of the seat.

Two sides of the truss structure are preferably connected to one another via a stabilization layer. A main plane of extent of the stabilization layer is in particular arranged transversely to the demolding direction and / or transversely to planes along which the ribs of the truss structure extend.

It can be provided that the additional structure forms part of an additional device, the additional device further comprising a head support element which is fixed to the additional structure at a free end of the molded component opposite the fastening end or which forms the free end.

The headrest element or individual components thereof are produced in particular by plastic injection molding.

The use of a headrest element produced partially or completely as an injection-molded component can increase a transverse rigidity of the molded component as a whole.

As mentioned, the head support element is preferably completely or partially an injection-molded component. In particular, an organic sheet and / or metal insert is provided in the material of the head support element. This increases, in particular, transverse rigidity and / or can facilitate the reception of spring elements, in particular spring wires.

It can be provided that the headrest element comprises a head cushion, which is preferably not an injection-molded part, and / or is subsequently attached to one or more elements of the headrest element, for example produced by plastic injection molding.

The head cushion is preferably arranged on one side on a front side of the seat. In particular, the head cushion is received by a holding element. The holding element is, for example, a shell, preferably produced by plastic injection molding.

The front of the seat is preferably the side on which a head of a person who has sat on the seat comes to rest.

The rear side is preferably that side of the seat which is arranged facing away from the front side.

Alternatively, the head cushion can be formed on both sides with respect to a front side and / or a rear side of the seat. The head cushion is in this case arranged in particular on a front side and on a rear side of the seat and / or cushions a holding element of the head support element at the front and rear. The holding element is produced, for example, by plastic injection molding.

The head cushion is preferably designed in the form of a cover which cushions the holding element, in particular at the front and rear.

The coating can be, for example, an annular coating or a hood.

The head cushion is preferably mounted subsequently and / or pushed onto a holding element of the head support element.

The head support element is preferably subsequently attached to the additional structure.

Injection-molded components of the head support element are preferably produced by means of a separate injection-molding tool.

It can be favorable if the head support element is fixed to the additional structure by means of an adjustment device of the molded component, wherein a relative position between the additional structure and the head support element can be varied by means of the adjustment device.

The head support element is preferably designed to be displaceable relative to the additional structure.

The adjusting device preferably comprises a rail system by means of which the head support element can be displaced relative to the additional structure.

The additional structure and / or an additional device comprising the additional structure preferably comprises a thermoplastic and / or a thermosetting polymer material or is formed from a thermoplastic and / or a thermosetting polymer material.

In particular, an organic sheet can be integrated into the additional structure and / or individual or multiple elements of the additional device or can be produced by producing the additional structure and / or individual or multiple elements of the additional device.

It can be provided that individual, several or all elements of the additional device comprise an insert and / or an insert which and / or which in each case in particular comprises a metallic material or is formed from a metallic material.

Preferred metallic materials are steel, aluminum, magnesium or alloys thereof.

In addition, fiber reinforcement, for example by means of short fibers or long fibers or continuous fibers, can be provided.

Furthermore, inserts, reinforcements, fabrics, scrims or other additions for producing the additional structure and / or individual elements of the additional device can be provided.

The material of the additional structure and / or additional device is, for example, polyamide (PA) or polypropylene (PP) or a similar polymer material that can be processed by plastic injection molding, or mixtures of the materials mentioned.

The at least one tubular carrier preferably comprises a metallic material or is formed from a metallic material.

Steel, aluminum and / or magnesium and / or an alloy made from one of the materials mentioned is provided as the metallic material.

As an alternative or in addition to this, it can be provided that the at least one tubular carrier comprises or is formed from a polymer material. In particular, it can be provided that the at least one tubular carrier is designed as a glass fiber reinforced plastic pipe, in particular a GRP pipe or CFRP pipe.

It can be provided that the at least one tubular carrier has a flattened cross section in the transition areas from the connecting section to the legs compared to an average cross section of the connecting section.

In a region which is arranged centrally between the two legs of the at least one tubular carrier, the connecting section preferably has a cross-section that is widened compared to the average cross-section of the connecting section.

In particular, the at least one tubular carrier is not designed to be rotationally symmetrical.

In particular, if the at least one tubular carrier is at least partially or partially non-rotationally symmetrical, preferably flattened, one or more securing sections on the at least one tubular carrier are secured against rotation.

The additional structure forms, in particular, a component of an additional device of the molded component, the additional device further comprising one or more receiving devices for receiving one or more additional components. The one or more additional components are, for example, armrests.

Additionally or alternatively, the one or more additional components can be one or more airbags.

In particular, the additional device comprises two receiving devices, the two receiving devices being injection-molded components, which are in particular each fixed to a leg.

The two receiving devices each include, in particular, a projection for fixing an armrest.

It can be provided that the one or more receiving devices are injection-molded onto the legs.

The projection is preferably designed in the form of a metal bolt, which is in particular encapsulated with a polymer material.

Alternatively, the entire receiving device is formed entirely from a polymer material.

It can be favorable if the additional structure forms part of an additional device of the molded component, the additional device further comprising a belt guide for guiding and / or deflecting a belt. The belt guide is produced in particular by plastic injection molding and / or is arranged on a free end of the molded component opposite the fastening end.

It can be provided that the belt guide is produced in one piece with the additional structure.

Alternatively, the belt guide is attached to the additional structure, in particular subsequently, in particular in a materially bonded manner, for example by gluing.

It can be provided that the belt guide comprises an insert and / or an insert or is formed by an insert and / or an insert.

The insert and / or the inlay preferably comprises a metallic material or is formed from a metallic material.

For example, the insert and / or the inlay comprises or is formed from one or more of the following materials: steel, aluminum, magnesium.

The insert and / or the inlay is preferably connected to the additional structure and / or integrated into the additional structure during the production of the additional device.

For example, the insert and / or the insert is injection-molded onto the additional structure and / or overmolded with the additional structure.

The belt guide preferably comprises an opening for receiving a belt.

For a space-saving design of the molded component and / or the seat, it can be advantageous if the belt guide includes a belt retractor for rolling up and / or unrolling a belt. The belt retractor is arranged, for example, within a housing of the belt guide.

It can be advantageous if the additional structure forms part of an additional device of the molded component, the additional device further comprising one or more fixing sections which are injection-molded around the at least one tubular carrier and / or annularly surround the at least one tubular carrier.

The securing sections preferably surround the at least one tubular carrier in a form-fitting manner.

It can be provided that one or more fastening sections of the one or more fastening sections have fastening projections, in particular fastening tabs, which are used in particular to fasten a cover and / or a lamination.

The molded component is suitable for use in a seat, in particular a vehicle or aircraft seat.

The seat comprises a molded component according to the invention, the molded component forming a supporting structure for a backrest and / or seat surface of the seat.

A vehicle seat is, in particular, a front seat of a passenger car. The vehicle seat is preferably a single seat. However, it can also be provided that the seat is a bench.

The seat is therefore basically suitable for any use in which one or more people are to be taken up in a supporting manner.

The additional structure and / or additional device can for example have a so-called class A surface. A Class A surface is a visible (free) surface that no longer needs to be reworked. Class A surfaces typically have a continuity of curvature. Subsequent cladding of the additional structure and / or additional device on both sides is then preferably unnecessary.

The seat can also be the seat of a train, a bus or a ship.

It can be favorable if the connecting section adjoins a seat surface area of the seat.

In particular, the molded component is articulated at the fastening end to a seat surface area of the seat.

A plate-shaped element of an additional device of the molded component preferably forms a backrest section, in particular a lumbar support receptacle.

The present invention also relates to a method for producing a molded component.

In this regard, the invention is based on the object of providing a method by means of which an inexpensive molded component can be easily produced.

• - Bereitstellen mindestens eines rohrförmigen Trägers, welcher zwei Schenkel und einen zwischen den zwei Schenkeln angeordneten Verbindungsabschnitt umfasst, wobei der Verbindungsabschnitt an einem Befestigungsende zum Festlegen des Formbauteils an einem weiteren Bauteil angeordnet ist oder das Befestigungsende bildet; und
• - Anordnen einer Zusatzstruktur an dem mindestens einen rohrförmigen Träger, wobei von dem Verbindungsabschnitt abgewandte Endbereiche der zwei Schenkel miteinander verbunden werden, wobei die Zusatzstruktur ein Spritzgussbauteil ist.

According to the invention, this object is achieved by a method for producing a molded component, in particular a molded component according to the invention, comprising:

• - Providing at least one tubular carrier which comprises two legs and a connecting portion arranged between the two legs, wherein the Connecting section is arranged at a fastening end for securing the molded component to a further component or forms the fastening end; and
• Arranging an additional structure on the at least one tubular support, end regions of the two legs facing away from the connecting section being connected to one another, the additional structure being an injection-molded component.

According to one embodiment it can be provided that an additional structure produced by plastic injection molding is fixed to the at least one tubular carrier.

According to a further embodiment it can be provided that the additional structure is injection-molded onto the at least one tubular carrier by plastic injection molding.

It can be favorable if the at least one tubular carrier is deformed by bending and / or hydroforming and / or is at least approximately brought into an, in particular angular, U-shape.

Preferably, the at least one tubular carrier is formed by hydroforming, the two end regions of the two legs of the at least one tubular carrier facing away from the connecting section being or being aligned essentially parallel to one another and / or opening towards a common side, with a pressure tool for Hydroforming is connected to two connection points which are arranged on a common side of the at least one tubular carrier.

The additional structure is preferably inserted into the two end regions facing away from the connecting section. In particular, fixing sections of the additional structure engage in the two end regions of the legs of the at least one carrier.

In addition or as an alternative, the additional structure is plugged onto the two end regions of the legs that are applied to the connecting region.

In this context, “plugging on” does not necessarily mean that the additional structure is plugged onto the two end regions of the legs facing away from the connecting section from a specific direction, for example from above. Rather, it means in particular that the two end regions of the two legs facing away from the connecting section engage in two fixing sections of the additional structure.

In particular, the additional structure is fixed on and / or in the two end regions facing away from the connecting section.

For example, two fixing sections of the additional structure protrude into the two limbs in end regions of the two limbs facing away from the connecting section.

It can be provided that the fixing sections of the additional structure overlap with the two legs in the end regions facing away from the connecting section.

In order to fix the additional structure in an extension direction relative to the two legs of the at least one tubular carrier, the additional structure, in particular two fixing sections of the additional structure, is preferably fixed in the end regions of the legs by means of screws.

• - die Zusatzstruktur und das Kopfstützelement; und/oder
• - die Zusatzstruktur und die Gurtführung; und/oder
• - die Zusatzstruktur und das plattenförmige Element; und/oder
• - die Zusatzstruktur und die Festlegungsabschnitte; und/oder
• - die Aufnahmevorrichtungen und die (weiteren) Festlegungsabschnitte.

Preferably, one or more of the following elements are and / or are produced in one piece or in one process step:

• - the additional structure and the headrest element; and or
• - the additional structure and the belt guide; and or
• - The additional structure and the plate-shaped element; and or
• - the additional structure and the definition sections; and or
• - the receiving devices and the (further) fixing sections.

In addition or as an alternative, individual or several of the named elements are and / or are manufactured separately and are and / or are subsequently connected to one another.

The connection of the additional structure and the at least one tubular carrier is preferably carried out in one process step.

In particular, the entire molded component, except for the head support element, is produced in one process step.

The inventive method preferably has one or more of the im Connection with the described molded part and / or seat explained features and vice versa.

The method according to the invention preferably has one or more of the advantages explained in connection with the described molded component and / or seat, and vice versa.

Further preferred features and / or advantages of the invention are the subject matter of the following description and the graphic representation of an exemplary embodiment.

• 1 eine schematische perspektivische Darstellung einer Ausführungsform eines Formbauteils, welches eine tragende Struktur für eine Rückenlehne eines Sitzes bildet;
• 2 eine weitere schematische perspektivische Darstellung des Formbauteils aus 1, mit Blick auf eine Rückseite des Formbauteils;
• 3 eine schematische Seitenansicht des Formbauteils aus 1;
• 4 eine schematische Draufsicht auf eine Oberseite des Formbauteils aus 1;
• 5 eine schematische Draufsicht auf eine Unterseite des Formbauteils aus 1;
• 6 eine schematische Draufsicht auf eine Vorderseite des Formbauteils aus 1;
• 7 einen schematischen Schnitt durch das Formbauteil aus 6 längs einer in 6 mit VII bezeichneten Ebene;
• 8 einen schematischen Schnitt durch das Formbauteil aus 6 längs einer in 6 mit VIII bezeichneten Ebene; und
• 9 einen schematischen Schnitt durch das Formbauteil aus 8 längs einer in 8 mit IX bezeichneten Ebene.

In the drawings show:

• 1 a schematic perspective illustration of an embodiment of a molded component which forms a supporting structure for a backrest of a seat;
• 2 a further schematic perspective illustration of the molded part 1 , with a view of a rear side of the molded component;
• 3 a schematic side view of the molded part 1 ;
• 4th a schematic plan view of an upper side of the molded part 1 ;
• 5 a schematic plan view of an underside of the molded part 1 ;
• 6th a schematic plan view of a front side of the molded part 1 ;
• 7th a schematic section through the molded part 6th along one in 6th level marked VII;
• 8th a schematic section through the molded part 6th along one in 6th level marked VIII; and
• 9 a schematic section through the molded part 8th along one in 8th level marked IX.

Identical or functionally equivalent elements are provided with the same reference symbols in all figures.

One in the 1 to 9 The illustrated embodiment of a molded component designated as a whole by 100 is used, for example, as part of a load-bearing structure 102 in one seat 104 Application.

The seat 104 is in particular a vehicle seat 106 , which is used, for example, in aircraft as a pilot's seat or passenger seat or in passenger cars as a driver's seat or front passenger seat.

The molded part 100 preferably forms a supporting structure 102 a backrest 108 of the seat 104 .

The molded part 100 in the present case comprises a tubular carrier 110 and an additional structure 112 .

Alternatively it can be provided that the molded component 100 multiple tubular supports 110 which are connected to one another, for example via an intermediate layer.

The tubular carrier 110 is in the present case in a, in particular angular, U-shape and has two legs 114 on which one between the two legs 114 arranged connecting portion 116 of the tubular support 110 are connected to each other.

The tubular carrier 110 is preferably made in one piece, with the tubular support 110 is preferably brought into the appropriate shape by an internal high pressure forming process and / or a bending process.

In transition areas 118 from the connecting portion 116 on the two legs 114 exhibits the tubular support 110 preferably a flattened cross-section, which in particular a stabilization of the tubular carrier 110 serves against transverse forces.

“Flattened” is in particular to an average cross section of the connecting section 116 based.

To a center of the connection portion 116 between the two legs 114 is the cross section of the connecting portion 116 preferably widened and / or widened with respect to the average cross section.

The tubular carrier 110 in particular has an at least approximately rectangular cross section.

It can be advantageous if the legs 114 have an ergonomically favorable shape which is adapted to the shape of a human spine.

The tubular carrier 110 preferably comprises a metallic material or is formed from a metallic material.

For example, steel, aluminum, magnesium and / or an alloy thereof are suitable as the metallic material.

As an alternative or in addition to this, it can be provided that the tubular carrier 110 comprises or is formed from a polymer material. In particular, it can be provided that the tubular carrier 110 is designed as a glass fiber reinforced plastic pipe, in particular GRP pipe or CFRP pipe.

A longitudinal central axis of the connecting portion 116 is preferably in the assembled state of the molded component 100 in one seat 104 in a horizontal plane and / or adjoins a seat surface area of a seat surface (not shown) of the seat 104 at.

The connecting section 116 in the present case forms a fastening end 120 of the molded part 100 , which is a fastening of the molded part 100 on another component - in this case a seat surface of the seat 104 - serves.

Alternatively, it can be provided that the connecting section 116 at the attachment end 120 is arranged and further components, which are further from the additional structure 112 are spaced, the attachment end 120 form.

The connecting section 116 is at the bottom of the molded component with respect to a direction of gravity g 100 arranged.

The additional structure 112 is an injection molded component and connects two of the attachment end 120 remote end areas 122 together. To connect the two end areas 122 is in particular a form fit and / or force fit and / or material fit between the two end regions 122 of the tubular support 110 and end-forming fixing portions 123 the additional structure 112 intended.

It can be favorable if the tubular carrier 110 is designed as a hollow profile and the two fixing sections 123 the additional structure 112 each in one of the tubular support 110 engage and / or are introduced into the volume surrounded on four sides.

The fixation sections 123 preferably form the connecting section 116 facing ends of the additional structure 112 and / or are in relation to a base body of the additional structure 112 angled.

For example, the fixation sections 123 the additional structure 112 by means of screws in the two of the connecting portion 116 remote end areas 122 of the two legs 114 with respect to a direction of extension.

It can be provided that in the fixing sections 123 the additional structure 112 one or more inserts and / or sleeves are embedded, in which screws for fixing the additional structure 112 on the tubular support 110 intervention.

It can be favorable if the fixing sections 123 the additional structure 112 by means of screws engaging in inserts on each wall of the two of the connecting section 116 remote end areas 122 of the two legs 114 are clamped.

Alternatively, it can be provided that in the fixing sections 123 the additional structure 112 Sleeves are embedded, by means of which the fixing sections 123 in particular on two opposing walls of the connecting section 116 remote end areas 122 are clamped.

For example, one screw is in each case in the fixing section 123 arranged sleeve passed through and on two opposite walls of the end regions 122 of the two legs 114 fixed from the outside.

The additional structure 112 preferably comprises a thermoplastic and / or thermosetting polymer material or is formed from a thermoplastic and / or thermosetting polymer material.

Examples of suitable thermoplastic polymer materials are polyamide (PA) or polypropylene (PP) or a similar polymer material that can be processed by plastic injection molding or mixtures of the polymer materials mentioned.

It can be beneficial if the additional structure 112 has a framework structure which extends along a demolding direction arranged transversely to the direction of gravity g.

It can be provided that the framework structure with respect to a front side and / or a rear side of the molded component 100 extends on both sides. A stabilization position 124 the truss structure is present, in particular in the middle, between ribs of the truss structure extending on both sides. The stabilization situation 124 is particularly in 7th to see.

The ribs are connected to one another at nodes, for example.

The ribs preferably extend parallel to a demolding direction, along which the additional structure 112 is removed from the mold during manufacture, from the stabilization layer 124 path. In particular, the ribs extend along planes which are arranged in a spatial direction parallel to the demolding direction and / or in a spatial direction perpendicular to the demolding direction.

Ribs of the truss structure that extend parallel to the demolding direction stabilize the additional structure 112 preferably against forces which are transverse to the direction of demolding act while the stabilization position 124 in particular, absorbs forces which act parallel to the demolding direction.

The additional structure 112 in particular forms a cross member 126 and / or a shoulder support structure 128 for one person who is on the seat 104 Has taken a seat.

The additional structure preferably forms 112 part of an additional device 130 .

The preferred materials mentioned for the additional structure 112 apply to the additional device 130 equally.

It can also be used for the additional structure 112 as well as for one or more of the other components of the additional device 130 it can be provided that one or more organic sheets and / or one or more inserts and / or one or more inserts, in particular metal insert elements, are provided.

One or more inserts and / or inlays preferably comprise one or more of the following materials or are formed from them: steel, aluminum, magnesium.

So the individual elements of the additional device 130 be designed with an increased transverse rigidity and / or spring elements are added.

The spring elements are, for example, spring wires.

In particular, fiber reinforcement, for example by means of short fibers or long fibers or continuous fibers, can be provided in addition or as an alternative.

Furthermore, inlays, reinforcements, fabrics, scrims or other additions for producing the additional structure and / or the additional device can be provided.

For example, by embedding spring wires in the polymer material, the resulting elements can be made more stable.

The additional device 130 further preferably comprises a head support element 132 , a belt guide 134 , a plate-shaped element 138 , one or more specification sections 140 and one or more receiving devices 142 .

One, several, or all of the elements of the accessory device 130 are preferably injection molded components.

In particular, one, several or all of the elements of the additional device comprise a thermoplastic and / or thermosetting polymer material or are formed from a thermoplastic and / or thermosetting polymer material.

The headrest element 132 is preferably at one of the attachment ends 120 opposite free end 144 of the molded part 100 arranged and / or facing from the connecting portion 116 path.

The free end 144 preferably protrudes from the seat surface of the seat 104 path. The free end 144 is in particular a part of the molded component that is furthest away from the seat surface 100 .

It can be beneficial if the headrest element 132 at least in some areas has a framework structure and / or is produced by plastic injection molding.

Preferably the head support element comprises 132 one present in the form of a shell 146 formed holding element. That in the form of a bowl 146 formed holding element is, in particular directly, on one of the connecting portion 116 remote edge of the additional structure 112 arranged.

In particular, the head support element 132 integral with the additional structure 112 trained or subsequently specified.

The headrest element 132 further preferably comprises a head pad 148 , which on a one head of a person who is on the seat 104 Has taken a seat, facing side of the bowl 146 is recorded.

The head cushion 148 serves in particular to upholster the head of the person and thus in particular increases seating comfort.

The head cushion 132 can - as in the illustrated embodiment - on one side with respect to a front side of the seat 104 or on both sides with respect to a front and / or a rear of the seat 104 be trained.

As an alternative to receiving the head cushion 148 in the bowl 146 , it can be provided that the head cushion 148 is designed as a coating over the holding element. The cover is slipped over and / or pushed onto the holding element, for example. So can a double-sided padding of the headrest element 132 be formed.

The coating can be designed, for example, as a hood or as an annular coating.

It can be provided that the head support element 132 by means of an adjusting device (not shown) of the molded component 100 on the additional structure 112 is set, with a relative position of the additional structure 112 and the headrest element 132 is variable.

Preferably, the head support element 132 by means of a rail system of the adjusting device at a distance from the additional structure 112 to be brought. This is in particular a height of the head support element 132 depending on the size of the person who is on the seat 104 Has taken place, adjustable and / or can be adjusted.

For a simplified and / or more stable assembly of the headrest element 132 it can be advantageous if an upper region of the additional structure with respect to the direction of gravity g 112 is flattened.

Like the one in particular 1 and 2 can be seen, the two are from the connecting section 116 remote end areas 122 of the tubular support 110 formed open to a common side, namely with respect to the direction of gravity g upwards.

This results in an inlet opening for an internal high-pressure forming process 150 as well as an outlet opening 152 for the fluid used for forming, the inlet opening 150 and the exit opening 152 to a common side, namely with respect to the direction of gravity g in the assembled state of the seat 104 upwards, open.

The inlet openings are in the assembled state 150 and the exit opening 152 in the present case from the fixation sections 123 the additional structure 112 closed.

By means of the additional structure 112 it is preferably avoided that the tubular support bent into the, in particular angular, U-shape 110 bends in the event of a crash.

As already mentioned, the additional device comprises 130 of the molded part 100 preferably one or more, in the present case two, receiving devices 142 , which with respect to the direction of gravity g in particular on a lower half of the two legs 114 are set.

The receiving devices are more favorable 142 by means of definition sections 140 showing the thighs 114 ring-shaped, on the thighs 114 set and / or to the thighs 114 injected.

The recording devices 142 preferably stand laterally over the two legs 114 to the outside and / or form a receiving structure for armrests (not shown) designed as additional components. The receiving devices have for this purpose 142 preferably a projection each 154 on, which is laterally outward from the thighs 114 extends away.

The protrusions 154 are preferably used to fix the armrests.

It can be beneficial if the projections 154 as, especially metallic, bolts 156 are trained.

Alternatively, it can be provided that the receiving devices 142 are formed entirely from a thermoplastic and / or thermosetting polymer material.

The molded part 100 furthermore preferably comprises several (further) fixing sections 140 , which are preferably used to fix a cushion and / or a lamination. The definition sections 140 surround the thighs 114 preferably ring-shaped and / or are on the legs 114 injected.

It can be provided that the fixing sections 140 Fastening protrusions 158 have, which are between the legs 114 inwards from the thighs 114 extend away. The fastening protrusions 158 are preferably designed as fastening straps.

It can be provided that the belt guide 134 integral with the additional structure 112 is made. Alternatively, the belt guide 134 subsequently on the additional structure 112 set.

It can be provided that the belt guide 134 one, in particular metallic, insert and / or one, in particular metallic, insert, which during the production of the additional structure 112 encapsulated or to the additional structure 112 is injected.

An alternative is the belt guide 134 formed by an, in particular metallic, insert and / or by an, in particular metallic, insert.

The insert and / or the inlay comprises, for example, one or more of the following materials or is formed from them: steel, aluminum, magnesium.

The belt guide 134 serves in particular for belt guidance and / or belt deflection.

Preferably the belt guide comprises 134 an opening 136 for receiving a belt (not shown).

The opening 136 is preferably of the additional structure 112 arranged facing away.

It can be provided that the belt guide 134 comprises a belt retractor, by means of which a belt can be rolled up and / or unrolled.

The plate-shaped element 138 extends preferably parallel to a plane in which longitudinal center axes of the two legs 114 and / or the connecting section 116 and / or the additional structure 112 lie.

The plate-shaped element 138 preferably has an at least approximately rectangular plate-shaped base body, and in particular includes resilient sections 160 which extends towards the thighs 114 from the main body of the plate-shaped element 138 extend away.

The plate-shaped element 138 is in particular part of a support device 162 to support the back of a person who is on the seat 104 Has taken a seat.

The plate-shaped element 138 in particular forms a lumbar support receptacle.

It can be favorable if the plate-shaped element 138 by means of definition sections 140 at the connecting portion 116 is fixed. The connecting section 116 is in particular from the definition sections 138 , in particular ring-shaped, encapsulated.

It can be provided that the plate-shaped element 138 to the connecting section 116 facing one or more indentations or recesses. In the indentations or recesses there is preferably a support relative to the tubular support 110 rotatable coupling component 172 a swivel device 170 of the molded part 100 recorded. On the swivel device 170 will be discussed in more detail later.

For increased seating comfort, it can be advantageous if the plate-shaped element 138 preferably resilient on the additional structure 112 is fixed. A spring device is particularly useful for this purpose 164 intended. The spring device 164 can, for example, as a separate device for connecting the plate-shaped element 138 with the additional structure 112 be trained.

However, it can also be provided that the plate-shaped element 138 integral with the additional structure 112 is formed and the spring device 164 for example by a meandering or undulating structure between the additional structure 112 and the plate-shaped element 138 formed area of the additional device 130 is formed.

The molded part 100 furthermore preferably comprises a pivoting device 170 , by means of which the molded component 100 relative to a rotatable coupling component 172 is held pivotable.

The swivel device 170 preferably comprises one or more fixed coupling components 174 and one or more rotatable coupling components 172 .

The one or more fixed coupling components 174 when the tubular support is pivoted 110 moved along.

The one or more rotatable coupling components 172 are relative to pivotal movement of the tubular support 110 fixed.

The one or more rotatable coupling components 172 are preferably on a seat surface of the seat 104 set so that the tubular support 110 and / or the additional structure 112 relative to the seat surface of the seat 104 is held pivotable and / or can be pivoted.

It can be beneficial if two fixed coupling components 174 on two connection elements 176 are firmly bonded and / or positively and / or non-positively.

It can be provided that relative to the tubular carrier 110 fixed coupling components 174 on two, from the outside in the transition areas 118 of the tubular support 110 attacking connection elements 176 are set.

In particular, the fixed coupling components 174 on the connection elements 176 welded on from the outside.

The two connecting elements 176 are for example in sheet metal form, for example from a metal sheet.

It can be beneficial if the two connecting elements 176 each have a shape which is essentially an external shape of the tubular carrier 110 in the Transition areas 118 from the connecting portion 116 on the thighs 114 corresponds.

For increased transverse rigidity of the tubular beam 110 even during a pivoting movement, it can be advantageous if the connecting elements 176 from outside in the transition areas 118 on the tubular support 110 are set.

For example, the connecting elements 176 to the tubular support 110 screwed on.

Self-tapping and / or chip-avoiding screws are particularly suitable for screwing on and / or screwing. Such screws are, for example, FDS® screws, which are available from Ejot®.

By using an even number of screws, for example four screws per connection element 176 , a symmetrical definition of the connection elements 176 on the tubular support 110 be formed.

The pivoting device preferably comprises 170 an integrated motor 180 , which in the present case is designed as an electric motor. The motor 180 particularly pivots the tubular support 110 relative to a (not shown) seat surface of the seat 104 .

It can be advantageous if the relative to the tubular carrier 110 fixed coupling components 174 attack from the outside. The motor 180 and / or an adjoining gear are preferably in an inner area between the two legs 114 and / or the connecting section 116 arranged.

Power is preferably transmitted from the outside.

By the arrangement of the engine 180 in the interior, the molded component 100 are designed to be particularly space-saving.

There is one relative to the tubular carrier 110 rotatable coupling component 172 designed as a rod-shaped element and its longitudinal center axis is in particular parallel to a longitudinal center axis of the connecting section 116 arranged.

Alternatively, the coupling components are designed as fixed coupling components 174 are described, rotatable coupling components 172 and vice versa.

As mentioned earlier, the tubular support 110 preferably produced by a bending process and / or an internal high pressure forming process.

The additional structure 112 and / or further elements of the additional device 130 are preferably manufactured in an injection molding process.

The additional structure 112 is preferably in the two of the connecting portion 116 remote end areas 122 of the tubular support 110 inserted and / or inserted. Free ends of the additional structure 112 especially reach into the inlet opening 150 and the exit opening 152 of the tubular support 110 one.

• - die Zusatzstruktur 112 und das Kopfstützelement 132; und/oder
• - die Zusatzstruktur 112 und die Gurtführung 134; und/oder
• - die Zusatzstruktur 112 und das plattenförmige Element 138; und/oder
• - die Zusatzstruktur 112 und die Festlegungsabschnitte 140; und/oder
• - die Aufnahmevorrichtungen 142 und die (weiteren) Festlegungsabschnitte 140.

Preferably, one or more of the following elements are and / or are produced in one piece or in one process step:

• - the additional structure 112 and the headrest element 132 ; and or
• - the additional structure 112 and the belt guide 134 ; and or
• - the additional structure 112 and the plate-shaped element 138 ; and or
• - the additional structure 112 and the setting sections 140 ; and or
• - the receptacles 142 and the (further) definition sections 140 .

In addition or as an alternative, individual or several of the named elements are and / or are produced separately and are and / or are subsequently connected to one another.

Through the formation of the connecting section 116 at or as an attachment end 120 of the molded part 100 and connecting the two of the connecting portion 116 remote end areas 122 of the two legs of the tubular support 110 through the additional structure 112 can in particular improve the transverse rigidity of the molded part 100 and as a result of the seat 104 in which the molded part 100 is built in.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 2479060 A1 [0003]
• DE 102017215092 A1 [0003]

Claims (21)

A molded component (100) comprising: - At least one tubular carrier (110) which comprises two legs (114) and a connecting section (116) arranged between the two legs (114); and - An additional structure (112) which is an injection-molded component and is attached to the at least one tubular support (110), the molded component (100) having a fastening end (120) by means of which the molded component (100) can be attached to a further component , wherein the connecting section (116) is arranged on the fastening end (120) of the molded component (100) or forms the fastening end (120) and wherein the additional structure (112) has two end regions (122) of the two legs (122) facing away from the connecting section (116). 114) of the at least one tubular carrier (110) connects to one another. Molded component (100) according to Claim 1 , characterized in that the at least one tubular carrier (110) and the additional structure (112) together form a closed, in particular angular, ring shape and / or that the additional structure (112) complements the at least one tubular carrier (110) to form a closed ring . Molded component (100) according to Claim 1 or 2 , characterized in that the additional structure (112) forms a cross member (126) and / or connects the two end regions (122) of the two legs (114) facing away from the connecting section (116) in a force-transmitting and / or stabilizing manner. Molded component (100) according to one of the Claims 1 to 3 , characterized in that the molded component (100) comprises a pivoting device (170) by means of which the at least one tubular support (110) and / or the additional structure (112) relative to one or more coupling components (172) of the pivoting device (170) a pivot axis are held pivotably, the pivoting device (170) being arranged in particular on the two legs (114) and / or adjacent to the connecting section (116). Molded component (100) according to Claim 4 , characterized in that the pivoting device (170) comprises two connection elements (176), by means of which a coupling component (174) of the pivoting device (170), which is fixed relative to the at least one tubular carrier (110), is fixed to the at least one carrier (110) , wherein the two connection elements (176) are arranged in particular opposite one another at two transition areas (118) from the connecting section (116) to the legs (114). Molded component (100) one of the Claims 1 to 5 , characterized in that the molded component (100) comprises a pivoting device (170) by means of which the at least one tubular support (110) and / or the additional structure (112) relative to one or more coupling components (172) of the pivoting device (170) a pivot axis are pivotably held, the pivoting device (170) being firmly and / or positively and / or non-positively fixed to the at least one tubular carrier (110) by means of two connecting elements (176) and in particular one or more being fixed relative to the at least one tubular Carrier (110) fixed coupling components (174) of the pivoting device (170) are firmly bonded and / or positively and / or non-positively attached to the two connecting elements (176). Molded component (100) according to one of the Claims 1 to 6th , characterized in that the additional structure (112), in particular on both sides, has a framework structure which in particular extends into the two legs (114) of the at least one tubular carrier (110). Molded component (100) according to one of the Claims 1 to 7th , characterized in that the additional structure (112) forms part of an additional device (130), the additional device (130) further comprising a head support element (132) which is attached to a free end (144) of the molded component (144) opposite the fastening end (120). 100) is fixed to the additional structure (112) or forms the free end (144). Molded component (100) according to Claim 8 , characterized in that the head support element (132) is fixed to the additional structure (112) by means of an adjusting device of the molded component (100), wherein a relative position between the additional structure (112) and the head support element (132) can be varied by means of the adjusting device. Molded component (100) according to one of the Claims 1 to 9 , characterized in that the additional structure (112) and / or an additional device (130) comprising the additional structure (112) comprises a thermoplastic and / or a thermosetting polymer material or is formed from a thermoplastic and / or a thermosetting polymer material. Molded component (100) according to one of the Claims 1 to 10 , characterized in that the at least one tubular carrier (110) comprises a metallic material or is formed from a metallic material. Molded component (100) according to one of the Claims 1 to 11 characterized in that the at least one tubular support (110) has a flattened cross section in transition regions (118) from the connecting section (116) to the legs (114) compared to an average cross section of the connecting section (116). Molded component (100) according to one of the Claims 1 to 12 , characterized in that the additional structure (112) forms part of an additional device (130) of the molded component (100), wherein the additional device (130) further comprises one or more receiving devices (142) for receiving one or more additional components, one or more several additional components, for example armrests. Molded component (100) according to Claim 13 , characterized in that the additional device (130) comprises two receiving devices (142), wherein the two receiving devices (142) are injection-molded components, which are in particular fixed to a leg (114), and / or wherein the two receiving devices (142) in particular each comprise a projection (154) for securing an armrest. Molded component (100) according to one of the Claims 1 to 14th , characterized in that the additional structure (112) forms part of an additional device (130) of the molded component (100), the additional device (130) further comprising a belt guide (134) for guiding and / or deflecting a belt, which is in particular made by plastic injection molding is produced and / or which is arranged on a free end (144) of the molded component (100) opposite the fastening end (120). Seat (104), in particular vehicle or aircraft seat (106), comprising a molded component (100) according to one of the Claims 1 to 15th , wherein the molded component (100) forms a supporting structure (102) for a backrest (108) and / or seat surface of the seat (104). Seat (104) Claim 16 , characterized in that the connecting section (116) adjoins a seat surface area of the seat (104). Seat (104) Claim 16 or 17th , characterized in that the additional structure (112) of the molded component (100) forms a shoulder support structure (128). Method for producing a molded component (100), in particular a molded component (100) according to one of the Claims 1 to 15th comprising: - providing at least one tubular carrier (110) which comprises two legs (114) and a connecting section (116) arranged between the two legs (114), the connecting section (116) at a fastening end (120) for fixing the Molded component (100) is arranged on a further component or forms the fastening end (120); and - arranging an additional structure (112) on the at least one tubular support (110), two end regions (122) of the two legs (114) facing away from the connecting section (116) being connected to one another, the additional structure (112) being an injection-molded component . Procedure according to Claim 19 , characterized in that the at least one tubular carrier (110) is reshaped by bending and / or hydroforming and / or is at least approximately brought into a U-shape. Procedure according to Claim 19 or 20th , characterized in that the additional structure (112) is inserted and / or clipped onto the two end regions (122) facing away from the connecting section (116) and in particular is fixed to the two end regions (122) facing away from the connecting section (116).

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